Finding the Fourth Proportional to 1,286,321.99, 1,929,078.18 and 465,554.66
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Solution
The fourth proportional to 1,286,321.99, 1,929,078.18 and 465,554.66 is: 698,185.48
Step by Step Solution
- Step 1: Write the proportion equation
1,286,321.99 : 1,929,078.18 = 465,554.66 : x - Step 2: Convert to fraction form
1,286,321.99/1,929,078.18 = 465,554.66/x - Step 3: Cross multiply
1,286,321.99x = 1,929,078.18 × 465,554.66 - Step 4: Simplify right side
1,286,321.99x = 898,091,326,557.93 - Step 5: Solve for x
x = 898,091,326,557.93/1,286,321.99 - Step 6: Final answer
x = 698,185.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.